Moved catalog to new computer but no longer recognizes my external hard drive. HELP!

[Laura25108018wnxh]

My husband bought me a new MacBook Pro for my photography editing.  As exciting as it was, that has now faded with the large task of moving my LrC catalog to a new computer.  Firstly, for some reason LrC had updated catalogs over the years so I had about 4 diffferent catalogs that I had to merged.  Then, I finally got the catalog to my new computer.  However, now when I pull up my external hard drive to edit images, LrC says No file found. In fact, there are no folders underneath my external hard drive in LrC when I click to import.  In Library mode, I see my files, however it states The file is not found.  I have had this happen before when I moved files, and I clicked on the ? and helped Lr find the file.  However in Library mode, there is no ?. I think that if I can show Lr where the files are, it will resolve this problem, however I do not know how to do that when there is no icon to click.  Also, the pictures are blank.  My ratings are on each image, however I do not see the image itself.  Please help! This is impairing my ability to complete my job as a photographer and incredibly frustrating!!  Thank you!

[JP Hess]

Does the external hard drive have the same name that it had on the previous computer? If not, in the library module, can you find the option in the left-hand column, update folder location and use it to locate the folders on the external hard drive with its new name?

[Laura25108018wnxh]

It does have the same name. Any other suggestions? Thank you for your
response!

[JP Hess]

Sorry, I have never used a Mac. But keep watching because there are plenty of Mac users who I'm sure will have suggestions for you.

[Laura25108018wnxh]

Ok thanks so much. I appreciate your time!

[JohanElzenga]

Apple changed the security requirements in MacOS Monterey. Go to MacOS 'System Settings - Security & Privacy' and add Lightroom Classic and Photoshop to "Full Disk Access". Click on the lock icon to unlock the settings, then click on the plus icon to add Lightroom Classic and/or Photoshop if it isn't already listed. If it is listed, then just enable the checkbox. See also  Quick Tips: How to give Full Disk Access to Lightroom Classic on macOS

[dj_paige]

Try this: https://community.adobe.com/t5/lightroom-classic-discussions/quick-tips-how-to-give-full-disk-access...

[Laura25108018wnxh]

Thank you thank you thank you!! I never would have guessed it was my Mac security. It worked! I'm back in business! So appreciative of your knowledge. Thank you!!